Unfortunately, there are no longer "queue" when it comes to a center. We have moved to an Avaya phone system, and with that, I do not believe we have a number that would get to a certain center. I also am not sure of the Des Moines center hours. I know normal customer service is open from 8-6, and I am not sure if any of the centers are open later to accommodate for 6 Western time (8 CST).
The billing department has been a mess since you left. After you left, our stock eventually dropped even further, and all of this is a reason that the billing department is now so shotty.

I hope I answered your questions to your liking.
Thanks for choosing... me!